Multiple choice

Which of the following species violate octet rule?

  1. PCl3
  2. AlCl3
  3. NCl3
  4. SF4
  5. BeF2
  6. CCl4

  1. 1, 2 and 4

  2. 1, 3 and 6

  3. 2, 4 and 5

  4. 3, 4 and 6

  5. 4, 5 and 6
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

AlCl3 violates octet rule, as Al has only 6 electrons in its valence shell. SF4 violates octet rule, as S has 10 electrons in its valence shell. BeF2 violates octet rule, as Be has only electrons in its valence shell.

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